19500008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3121}}^1$

素因数の和:3209

約数の個数: 32

約数和(自身を含む): 40461120

約数和(自身を除く): 20961112

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 142, 284, 568, 781, 1562, 3121, 3124, 6242, 6248, 12484, 24968, 34331, 68662, 137324, 221591, 274648, 443182, 886364, 1772728, 2437501, 4875002, 9750004, 19500008]

約数ペア:

[(1, 19500008), (2, 9750004), (4, 4875002), (8, 2437501), (11, 1772728), (22, 886364), (44, 443182), (71, 274648), (88, 221591), (142, 137324), (284, 68662), (568, 34331), (781, 24968), (1562, 12484), (3121, 6248), (3124, 6242)]